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Recognised as Colour

#4D53BB

  • #4D53BB
  • Blue
  • Dark
  • Nearest: Slate blue

#4D53BB is a blue with RGB values 77, 83, 187 and HSL 237°, 45%, 52%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#4D53BB#4D53BB
HEX#4D53BB
RGBrgb(77, 83, 187)
RGB (0–1)0.302, 0.3255, 0.7333
RGB percentages30.2%, 32.5%, 73.3%
HSLhsl(236.7, 44.7%, 51.8%)
HSV / HSBhsv(236.7, 58.8%, 73.3%)
CMYK58.8%, 55.6%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,067,707
CSS custom property--colour: #4D53BB;

Brightness & contrast

Relative luminance0.11352WCAG 2.x, 0 is black and 1 is white
Perceived brightness99 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.42:1
Contrast with white6.42:1WCAG normal text: AA
Contrast with black3.27:1WCAG normal text: Fail
Greyscale equivalent#595959
Inverted#B2AC44

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0263BFno red cones; affects about 1% of men; ΔE 16.9 from the original
Deuteranopia#005AB9no green cones; the most common form, about 1% of men; ΔE 13.4 from the original
Tritanopia#006B7Fno blue cones; rare, and affects men and women equally; ΔE 60.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.42:1WCAG large text: AAA
Contrast with black, large text3.27:1WCAG large text: AA

Named colours

Slate blue · ΔE 9.1Royal blue · ΔE 12.4Dark slateblue · ΔE 16.8Medium purple · ΔE 17.8Rebecca purple · ΔE 18Medium slateblue · ΔE 19.6
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 9.09, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BBB54D
Analogous#4D8ABB, #7E4DBB
Triadic#BB4D53, #53BB4D
Split complementary#BB7E4D, #8ABB4D
Tetradic#BB4D8A, #BBB54D, #4DBB7E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E1E2F3
Lighter +30%#BCBEE5
Lighter +20%#979AD7
Lighter +10%#7277C9
Darker −10%#3B409A
Darker −20%#2D3175
Darker −30%#1F2150
Darker −40%#11122B
More saturated +25%#2E38DA
Less saturated −25%#6C6E9C

Channel breakdown

R77
G83
B187
Red77 (30.2%)
Green83 (32.5%)
Blue187 (73.3%)
Hue236.73°
Saturation (HSL)44.72%
Lightness51.76%
Dominant channelBlue
Hex per channelR 4D · G 53 · B BB

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Every value on this page was computed from “4d53bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.